atmega32c1 ATMEL Corporation, atmega32c1 Datasheet - Page 246
atmega32c1
Manufacturer Part Number
atmega32c1
Description
Atmega32m1 Automotive 8-bit Avr Microcontroller With 32k/64k Bytes In-system Programmable Flash
Manufacturer
ATMEL Corporation
Datasheet
1.ATMEGA32C1.pdf
(366 pages)
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18.9.4.1
18.9.4.2
18.9.5
18.9.6
246
ATmega32/64/M1/C1
Digital Input Disable Register 0 – DIDR0
Digital Input Disable Register 1– DIDR1
ADLAR = 0
ADLAR = 1
Nevertheless, to work easily with only 8-bit precision, there is the possibility to left adjust the
result thanks to the ADLAR bit in the ADCSRA register. Like this, it is sufficient to only read
ADCH to have the conversion result.
• Bit 7:0 – ADC7D..ADC0D, ACMPN0D, ACMPN1D, ACMPN2D, ACMPN3D, ACMP2D,
When this bit is written logic one, the digital input buffer on the corresponding ADC pin is dis-
abled. The corresponding PIN Register bit will always read as zero when this bit is set. When an
analog signal is applied to the ADC7..0 pin and the digital input from this pin is not needed, this
bit should be written logic one to reduce power consumption in the digital input buffer.
• Bit 6:0 – ADC10D..8D, ACMP0D, ACMP1D, ACMP3D, AMP0PD, AMP0ND, AMP1PD,
When this bit is written logic one, the digital input buffer on the corresponding ADC pin is dis-
abled. The corresponding PIN Register bit will always read as zero when this bit is set. When an
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
AMP2ND:
ADC7:0, ACMPN0, ACMPN1, ACMPN2, ACMPN3, ACMP2, AMP2N Digital Input Disable
AMP1ND, AMP2PD:
ADC10..8, ACMP0, ACMP1, ACMP3, AMP0P, AMP0N, AMP1P, AMP1N, AMP2P Digital
Input Disable
ADC7D
ADC7
ADC9
ADC1
R/W
7
R
R
0
0
7
R
R
0
0
7
0
7
0
-
-
-
ACMPN1D
AMP2ND
AMP2PD
ADC6D
ADC6
ADC8
ADC0
R/W
6
0
6
0
R
R
R
R
6
0
0
6
0
0
-
-
ACMPN0D
ACMP0D
ADC5D
ADC5
ADC7
R/W
R/W
R
R
R
R
5
0
5
0
5
0
0
5
0
0
-
-
AMP0PD
ADC4D
ADC4
ADC6
R/W
R/W
R
R
R
R
4
0
4
0
4
0
0
4
0
0
-
-
ACMPN2D
AMP0ND
ADC3D
ADC3
ADC5
R/W
R/W
3
R
R
0
0
3
R
R
0
0
3
0
3
0
-
-
ACMP2D
ACMP1D
ADC10D
ADC2D
ADC2
ADC4
R/W
R/W
R
R
R
R
2
0
2
0
2
0
0
2
0
0
-
-
AMP1PD
ACMP3D
ADC1D
ADC9D
ADC9
ADC1
ADC3
R/W
R/W
R
R
R
R
1
0
0
1
0
0
1
0
1
0
-
ACMPN3D
AMP1ND
ADC0D
ADC8D
ADC8
ADC0
ADC2
R/W
R/W
R
R
R
R
0
0
0
0
0
0
0
0
0
0
-
7647A–AVR–02/08
ADCH
ADCL
ADCH
ADCL
DIDR0
DIDR1
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